GB491 Combined With Fulvestrant for HR+ HER2- Locally Advanced or Metastatic Breast Cancer
Locally Advanced or Metastatic Breast Cancer
About this trial
This is an interventional treatment trial for Locally Advanced or Metastatic Breast Cancer focused on measuring CDK46, Phase III, GB491
Eligibility Criteria
Inclusion Criteria:
- Females or males of 18 years of age or older at study screening
- Histologically or cytologically confirmed locally advanced or advanced metastatic breast cancer that is not amenable to curative surgical resection or radiation therapy
- The subject has been diagnosed with ER-positive breast cancer in the local laboratory
- Subject has HER2-negative breast cancer in the local laboratory
- Menopausal status is not limited (including Premenopausal/perimenopausal/postmenopausal state)
- According to RECIST V1.1, the patient has at least one measurable lesion that has not been irradiated by radiotherapy and can be evaluated by CT/MRI; If only bone metastases are present, there must be at least one osteolytic bone lesion that can be evaluated by CT/MRI
- ECOG performance status of 0 or 1
- Adequate organ and marrow function.
Exclusion Criteria:
- Previous treatment with fulvestrant, everolimus and any other CDK4/6 inhibitors
- Subjects with known hypersensitivity to any component of GB491 or Fulvestrant
- Known active, uncontrolled, or symptomatic central nervous system metastasis, carcinomatous meningitis, or clinically manifested leptomeningeal disease, cerebral edema, spinal compression or/and tumor progressive growth
- Visceral crisis
- Patients with skin lesion only and radiographically non-measurable at baseline
- Persistent toxicities (CTCAE Grade >2) caused by previous anticancer therapy, excluding alopecia
- Patients who have been on bisphosphonates and denosumab therapy at a stable dose for less than 14 days prior to randomization
- Patients who have received limited field radiotherapy in 2 weeks or extended field radiotherapy in 4 weeks before randomization or radiation with more than 30% of the bone marrow
- Subjects use drugs or fruits containing strong inducers or inhibitors of CYP3A4/5, or drugs with narrow therapeutic window that are mainly metabolized by CYP3A4/5 in 14 days before randomization
- Patients with long-term systematic use of corticosteroids
- Any severe and/or uncontrollable medical conditions
- Patients with severely impaired lung function
- Known history of HIV infection or history of HIV seropositivity
- Subjects have significant hepatic disease
- Coagulation abnormalities
- Subjects with a history of other primary malignancies, except for non-melanoma skin cancer and cervical cancer in situ disease-free status ≥ 3 years
- Lactating women
Sites / Locations
- The First Affiliated Hospital of Bengbu Medical CollegeRecruiting
- Anhui Provincial Cancer HospitalRecruiting
- The Second Hospital of Anhui Medical UniversityRecruiting
- Beijing Chaoyang Hospital of Capital Medical UniversityRecruiting
- Cancer hospital Chinese Academy of Medical SciencesRecruiting
- Chinese PLA General HospitalRecruiting
- Beijing Tiantan Hospital , Capital Medical University
- Chongqing University Cancer HospitalRecruiting
- The First Affiliated Hospital of Chongqing Medical UniversityRecruiting
- Chognqing University Three Gorges HospitalRecruiting
- Fujian Medical University Union HospitalRecruiting
- First Affiliated Hospital of Xiamen UniversityRecruiting
- The First people's hospital of FoshanRecruiting
- Sun Yat-sen University Cancer CenterRecruiting
- The First Affiliated Hospital, Sun Yat-sen University
- Guangdong provincial TCM hospitalRecruiting
- Meizhou People's HospitalRecruiting
- Cancer Hospital Chinese Academy of Medical Sciences,Shenzhen Center Shenzhen Cancer Hospital
- Hainan General HospitalRecruiting
- Hainan Third People's HospitalRecruiting
- The Fourth Hospital of Hebei Medical University
- Affiliated hospital of Hebei UniversityRecruiting
- Harbin Medcial Univercity cancer hospitalRecruiting
- Henan Cancer HospitalRecruiting
- The First Affiliated Hospital of Zhengzhou UniversityRecruiting
- Tongji Medical College of Huazhong University of Science and TechnologyRecruiting
- Renmin Hospital of Wuhan UniversityRecruiting
- Hubei Cancer HospitalRecruiting
- The Affiliated hospital of Inner Mongolia Medical UniversityRecruiting
- Jiangsu Province Hospital
- Jiangxi Provincial HospitalRecruiting
- Jilin Cancer HospitalRecruiting
- The Second Hospital of Jilin UniversityRecruiting
- Bethune First Hospital Of Jilin UniversityRecruiting
- Shengjing Hospital of China Medical UniversityRecruiting
- Liaoning Cancer hospital & InstituteRecruiting
- General Hospital of Ningxia Medical UniversityRecruiting
- Central Hospital Affiliated to Shandong First Medical UniversityRecruiting
- Shandong Provincial Qianfoshan HospitalRecruiting
- Shandong Provincial HospitalRecruiting
- Shandong Cancer HospitalRecruiting
- Affiliated hospital of Jining Medical UniversityRecruiting
- Liaocheng People's HospitalRecruiting
- The Affiliated Hospital of Qingdao UniversityRecruiting
- Taian City Central HospitalRecruiting
- Yantai Yuhuangding Hospital
- Zhongshan Hospital Fudan University
- The first hospital of Shanxi Medical UniversityRecruiting
- West China School of MedicineRecruiting
- Tianjin Medical University Cancer Institute & HospitalRecruiting
- Affiliated Cancer Hospital of Xinjiang Medical UniversityRecruiting
- The Third Affiliated Hospital of Kunming Medical UniversityRecruiting
- The Second Affiliated Hospital, Zhejiang University School of MedicineRecruiting
- Zhejiang Cancer HospitalRecruiting
Arms of the Study
Arm 1
Arm 2
Experimental
Placebo Comparator
GB491+ Fulvestrant
Placebo+Fulvestrant
GB491: The dose of GB491 is 150 mg, which should be taken with a meal and taken twice daily at approximately the same time each day, approximately 12 hours apart. The drug is administered according to the patient's dose group until the progression of disease or an intolerable toxicity occur or meet the criteria for termination of treatment or the patient withdraw informed consent or the sponsor discontinues the trial. Fulvestrant: Intramuscular injection of flurvexine 500mg on day 1 and day 15 of the first cycle, and flurvexine 500mg on day 1 of the second and subsequent cycles Flurvexine 500mg should be given slowly (1-2 minutes per injection) on both sides of the buttocks, once 250 mg on each side.The drug is administered according to the patient's dose group until the progression of disease or an intolerable toxicity occur or meet the criteria for termination of treatment or the patient withdraw informed consent or the sponsor discontinues the trial.
Placebo: The dose of placebo is 150 mg, which should be taken with a meal and taken twice daily at approximately the same time each day, approximately 12 hours apart. The placebo is administered according to the patient's dose group until the progression of disease occur or meet the criteria for termination of treatment or the patient withdraw informed consent or the sponsor discontinues the trial. Fulvestrant: Intramuscular injection of flurvexine 500mg on day 1 and day 15 of the first cycle, and flurvexine 500mg on day 1 of the second and subsequent cycles Flurvexine 500mg should be given slowly (1-2 minutes per injection) on both sides of the buttocks, once 250 mg on each side. The drug is administered according to the patient's dose group until the progression of disease or an intolerable toxicity occur or meet the criteria for termination of treatment or the patient withdraw informed consent or the sponsor discontinues the trial.